The story really picks up in the second volume, with a major backstory reveal showing the tragic circumstances of how Mikasa and Eren first met as children and how Mikasa became part of Eren's family.

From there's it's back to the action as a large group of titans swarm a military supply depot, trapping some soldiers inside, and leaving those outside without the ability to replenish the gas they need for their vertical movement gear.

Mikasa, unaware that Eren may already have been killed in action, leads a desperate attack, but help suddenly appears in a most unexpected form.

This was nonstop action with lots of surprising twists and some good character development, particularly for Mikasa.